LAN.1 Landscapes LAN.1.1 Description & Expectations Landforms, the coast, rivers and wetlands, and vegetation, ranging from natural indigenous areas to cultivated pasture, combine to form a variety of landscapes within Whangarei District. These are further defined by the way buildings, roads and other structures are set amongst them. The varied combinations of natural and built elements provide a complexity that further characterises landscapes. A diverse range of coastal landscapes is one of the strongest aspects of Whangarei District’s identity. The expansive view of the Bream Bay shore with its Whangarei Heads backdrop that greets those entering the District over the Brynderwyn Hills, is a particularly striking visual introduction. Similarly, Pukenui Forest and Parihaka combine in creating a defining frame to Whangarei’s central business area, whilst bush clad hill country, volcanic cones, extensive farmed flats, the fluent course of rivers and streams, and the influence of pockets of indigenous vegetation, create a varied and interesting rural landscape that is often distinctive to Whangarei. Human activities such as building construction, earthworks and vegetation clearance can act to reduce the quality of landscapes. Special attention therefore needs to be given to ensuring subdivision, use and development is sensitive to the particular landscape characteristics of the District, especially in areas where the collective characteristics and qualities are considered outstanding. On the coast, the interaction between land and sea often provides a dynamic and scenic environment. However, for the same reason the coast is also a popular place to live and visit. Pressures related to natural landscapes therefore tend to be more explicit in coastal areas than in rural or urban areas – though inland landscapes also face pressure. Catering for the needs of recreational users, and mounting demands for residential and lifestyle block subdivisions, places considerable strain upon areas of the coast that have elevated landscape values. The Resource Management Act 1991 (RMA) requires Councils to protect outstanding natural features and landscapes from inappropriate subdivision, use and development (section 6(b)). The New Zealand Coastal Policy Statement 2010 (NZCPS) reinforces this duty as it applies to the coastal environment (Coastal Area) and requires that district plans identify where protection is needed (NZCPS Policy 15). The NZCPS also expressly requires that adverse effects of activities on outstanding natural features and landscapes within the coastal environment be avoided. 1 22 March 2016 Natural features are significant land (or water) features resulting from natural processes, as opposed to being man-made. Examples include mountain ranges, volcanic cones, coastal dunes, lakes, rivers and native forests. These discrete features are an integral part of the District’s landscape and on their own can significantly contribute to or even define the unique character and quality of an area. Individual outstanding natural features and outstanding natural landscapes within the Whangarei District were identified and mapped as part of a regional mapping project undertaken in 2012. Outstanding natural features were identified using an inventory of important geological sites and landforms in the Northland Region prepared by the Geological Society of New Zealand. The inventory identifies the best examples of the region’s unique geology and landforms, including those in the Whangarei District, using the knowledge and advice of specialist New Zealand geological, geomorphological and soil science communities. Outstanding natural landscapes were separately identified and mapped using best landscape assessment practice criteria which encompass natural science factors, aesthetic values and experiential values. Some areas are identified as being outstanding as both a natural feature and as a natural landscape. The objectives, policies and rules for outstanding natural features and outstanding natural landscapes as set out below, apply in addition to the rules for the underlying environments (e.g. Rural Production Environment, Living 1 Environment). LAN.1.2 Objectives 1. To identify outstanding natural features and outstanding natural landscapes within the Whangarei District and protect the characteristics and qualities of these areas from inappropriate subdivision, use and development. 2. To provide greatest protection for outstanding natural features and outstanding natural landscapes within the coastal environment. 3. To promote the conservation, enhancement and rehabilitation of outstanding natural landscapes. 4. To recognise and provide for existing landuse and development, including regionally significant infrastructure, within outstanding natural features and outstanding natural landscapes. 2 22 March 2016 LAN.1.3 Policies Identification 1. Identify the location and extent of the District’s outstanding natural features and outstanding natural landscapes that are sensitive to the effects of subdivision, use and development, on the District Plan Resource Maps. 2. Protect outstanding natural features and outstanding natural landscapes with particular regard to their individual characteristics and qualities as identified in landscape assessment worksheets (ONLs) and Schedule LAN.7 (ONFs). Protection 3. The location, scale and form of earthworks and built development in or on an outstanding natural feature shall not reduce the overall form, integrity and extent of the feature and shall take into account the vulnerability of the feature to modification. 4. Subject to Policies 5 and 6, subdivision, use and development within an outstanding natural landscapes shall be located and designed to avoid, to the greatest extent, adverse landscape and/or visual effects by: (a) being integrated with identified characteristics and qualities of outstanding natural landscapes; (b) avoiding sensitive landforms such as ridges, spurs, headlands, knolls and peaks; 5. (c) being responsive to natural contours; (d) being visually unobtrusive; (e) maintaining established areas and patterns of indigenous vegetation cover; and (f) avoiding permanent earthworks scarring. Within the Coastal Area, avoid adverse effects of subdivision, use and development on the characteristics and qualities of outstanding natural features and outstanding natural landscapes by restricting activities to those: (a) of a scale, location and design that have only minor or transitory adverse effects; or (b) associated with coastal hazard management that avoids the use of hard protection structures, including seawalls and armouring, along with other visible artificial elements. 3 22 March 2016 6. Outside of the Coastal Area, avoid significant adverse effects and avoid, remedy or mitigate other adverse effects (including cumulative adverse effects) of subdivision, use and development on the characteristics and qualities of outstanding natural features and outstanding natural landscapes. 7. Assess the scale and significance of adverse effects of subdivision, use and development on the characteristics and qualities of outstanding natural features and outstanding natural landscapes by: (a) having particular regard to: (i) the extent of the resource area affected; (ii) the sensitivity of resource to change; (iii) the degree of modification, damage, loss or destruction that will result from the activity; (iv) the duration and frequency of adverse effects; (v) whether adverse effects are reversible or irreversible; and (vi) the potential for spatial or temporal cumulative adverse effects of the proposed activity on its own or in combination with other authorised activities, including permitted activities; and (b) 8. recognising that a minor or transitory effect may not be an adverse effect. A site or property-specific landscape assessment, prepared by a suitably qualified and experienced person, shall be submitted with all consent applications for subdivision, use or development within an outstanding natural landscape. The landscape assessment shall: (a) reflect the requirements of other policies within this section; (b) demonstrate how potential adverse effects on the characteristics and qualities of the outstanding natural landscape are to be avoided as a matter of priority; and (c) clearly identify where the avoidance of adverse effects is not considered practicable and how unavoidable adverse effects will be remedied or mitigated. 9. Avoid, remedy or mitigate obstruction of existing important views of outstanding natural landscapes from public roads, public reserves, and the coastal marine area, including views from outside the mapped extent of the outstanding natural landscape. Buildings and Structures 10. Buildings and structures, excluding regionally significant infrastructure, in outstanding 4 22 March 2016 natural landscapes shall be located and designed so that they: (a) are inconspicuous when viewed from public land; (b) avoid locating upon, or intruding above, ridgelines, spurs, knolls and peaks where this results in adverse visual effects which cannot be remedied or mitigated; (c) use recessive colours and materials with low light reflectivity; (d) minimize artificial light spill; and (e) are visually recessive and blend with the surrounding vegetation and natural topography. 11. Allow for adverse effects arising from the establishment and operation of new regionally significant infrastructure and the re-consenting of existing operations in outstanding natural landscapes where: (a) it is demonstrated that there is no practical alternative location; (b) the proposal is generally consistent with Policies 5(a) and 6; and (c) measures are in place to avoid adverse effects to the greatest extent practicable, and adverse effects that cannot be avoided are remedied or mitigated to the extent that they are no more than minor. Earthworks 12. Avoid large scale earthworks, including mineral extraction, within outstanding natural features and outstanding natural landscapes. 13. Avoid, to the greatest extent practicable, the adverse visual effects of earthworks, including accessway and building platform creation, by: (a) careful analysis of existing site conditions; (b) consideration of alternative options and approaches; and (c) applying measures to blend areas altered by earthworks with the existing site conditions. Relevant site conditions shall include site elevation, slope and orientation drainage patterns, together with soil and slope stability. 14. Ensure that adverse visual effects of cut and fill batters in outstanding natural landscapes are remedied or mitigated by requiring revegetation where that is consistent with local landscape character and is practicable. 5 22 March 2016 Indigenous Vegetation 15. Protect areas of indigenous vegetation which contribute to the slope or soil stability of outstanding natural features or the character and visual quality of outstanding natural landscapes. Rehabilitation and Enhancement 16. Encourage the remediation of adverse effects of past or existing inappropriate land use activities on outstanding natural landscapes. 17. Recognise the positive effects of development proposals that provide for the enhancement and rehabilitation of previously compromised localised areas within outstanding natural landscapes. 18. Promote the active management, enhancement, and voluntary protection of outstanding natural features and outstanding natural landscapes by utilising regulatory incentives and non-regulatory methods. Existing Landuse 19. Recognise that identified outstanding natural features and landscapes may contain existing and/or subsequently authorised subdivision, use and development, including infrastructure, farming and forestry, and provide for the continuation of such activities as far as is consistent with the protection of outstanding natural features or outstanding natural landscapes. 20. Allow adverse effects arising from the maintenance and minor upgrading of existing authorised landuse and development, wherever it is located, where: (a) the adverse effects generated whilst the maintenance or upgrading is being undertaken are not significant; and (b) the adverse effects after the conclusion of the maintenance or upgrading are the same or similar to those that existed before the activity was undertaken. 6 22 March 2016 LAN.2 Outstanding Natural Landscapes – Landuse Rules LAN.2.1 Eligibility Rules 1. The rules below apply in addition to the rules of the underlying Environment. Where the standards are different between the underlying Environment and the ONL area, the most restrictive rule shall apply. 2. Any other activity not requiring consent as a discretionary or non-complying activity shall be a permitted activity. LAN.2.2 Notification Rules 1. Land use proposals that are non-complying activities must be publicly notified. 2. All other land use proposals requiring consent shall be subject to the notification tests of the RMA. LAN.2.3 Permitted Activities 2.3.1 Buildings and Structures 1. Construction of non-habitable buildings ancillary to rural production or network utility activities within an ONL within the Coastal Area is permitted provided that: (a) the gross floor area of any new building or buildings does not exceed 25m2; and (b) the exterior facades (excluding joinery) a r e coloured or painted with a colour with a reflectance value no greater than 35% or with a roof colour with a reflectance value no greater than 30% as defined within the BS5252 standard colour palette. 2. Construction of non-habitable buildings ancillary to rural production or network utility activities within an ONL outside the Coastal Area is permitted provided that: (a) the gross floor area of any new building or buildings does not exceed 100m2; and (b) the highest point of the building does not project above the nearest ridgeline, knoll or peak when viewed from the nearest public road, public reserve, or the coastal marine area; and (c) the exterior facades (excluding joinery) a r e coloured or painted with a colour with a reflectance value no greater than 35% or with a roof colour with a reflectance value no greater than 30% as defined within the BS5252 standard colour palette. 7 22 March 2016 3. External alteration or extension to an existing building within an ONL is permitted provided that: (a) the alteration or extension does not exceed 50m2 in area or does not exceed 20% of the gross floor area of the existing building which is being altered or added to, whichever is the lesser; and (b) 4. the alteration or extension does not exceed the height of the existing building. Installation of underground network utilities provided that comply with Earthworks Rule and Vegetation Clearance Rule. 2.3.2 Earthworks 1. Earthworks within an ONL is permitted if: (a) the volume is less than 150m3 and the area is less than 150m2 in any 12 month period within a site; and (b) the height or depth is less than 2m over a continuous distance of less than 50m within a site; and (c) the work is directly associated with: (i) the repair and maintenance of fences, utility connections, driveways, parking areas, effluent disposal systems, swimming pools, garden amenities, gardening, planting of any vegetation, burial of marine mammals, walking or cycling tracks, or farm and forestry tracks; or (ii) a sand dune restoration project; or (iii) the provision and maintenance of public accessways. 2.3.3 Indigenous Vegetation Clearance 1. Indigenous vegetation clearance is permitted if: (a) it is of less than or equal to 50m2 of contiguous indigenous vegetation within an ONL; and (b) directly associated with: (i) removal or pruning of trees, live or dead, that are a demonstrable danger to human life or structures; or (ii) routine maintenance and repair within 3m of existing buildings and structures (including network utilities), tracks, lawns, gardens, fences, drains and other lawfully established activities; or (iii) forestry operations and the vegetation or tree comprises the understorey directly beneath exotic or native plantation forest canopy; or 8 22 March 2016 (iv) vegetation removal for customary rights; or (v) conservation planting, including planting for ecological restoration purposes. LAN.2.4 Discretionary Activities 1. Construction of a non-habitable building ancillary to rural production or network utility activities within an ONL outside the Coastal Area with: (a) the gross floor area of any new building exceeds 50m2; and (b) the exterior facades (excluding joinery) a r e coloured or painted with a colour with a reflectance value greater than 35% or with a roof colour with a reflectance value greater than 30% as defined within the BS5252 standard colour palette. 2. Construction of a building or structure, including a Residential Unit, within an ONL outside of the Coastal Area. 3. External alteration or extension to an existing building within an ONL outside of the Coastal Area that: (a) exceeds 50m2 in area or 20% of the gross floor area of the existing building which is being altered or added to; or (b) 4. exceeds the height of the existing building. Earthworks within an ONL outside of the Coastal Area where: (a) the volume is more than or equal to 150m3 and the area is greater than or equal to 150m2 in any 12 month period within a site; and (b) the height or depth is more than or equal to 2m over a continuous distance of less than 50m within a site; and (c) the work is not directly associated with: (i) the repair and maintenance of fences, utility connections, driveways, parking areas, effluent disposal systems, swimming pools, garden amenities, gardening, planting of any vegetation, burial of marine mammals, walking or cycling tracks, or farm and forestry tracks; or 5. (ii) a sand dune restoration project; or (iii) the provision and maintenance of public accessways. The clearance of more than 50m2 of contiguous indigenous vegetation within an outstanding natural landscape outside the Coastal Area. 9 22 March 2016 6. The establishment of new forestry within an outstanding natural landscape outside the Coastal Area. LAN.2.5 Non-Complying Activities 1. Construction of a non-habitable building ancillary to rural production or network utility activities within an ONL within the Coastal Area with: (a) the gross floor area of any new building exceeds 25m2; and (b) the exterior facades (excluding joinery) a r e coloured or painted with a colour with a reflectance value greater than 35% or with a roof colour with a reflectance value greater than 30% as defined within the BS5252 standard colour palette. 2. Construction of a building or structure, including a Residential Unit or network utility, within an outstanding natural landscape within the Coastal Area. 3. External alteration or extension to an existing building within an ONL within the Coastal Area that: (a) exceeds 50m2 in area or 20% of the gross floor area of the existing building which is being altered or added to; or (b) 4. exceeds the height of the existing building. Earthworks within an outstanding natural landscape within the Coastal Area where: (a) the volume is more than or equal to 150m3 and the area is greater than or equal to 150m2 in any 12 month period within a site; and (b) the height or depth is more than or equal to 2m over a continuous distance of less than 50m within a site; and (c) the work is not directly associated with: (i) the repair and maintenance of fences, utility connections, driveways, parking areas, effluent disposal systems, swimming pools, garden amenities, gardening, planting of any vegetation, burial of marine mammals, walking or cycling tracks, or farm and forestry tracks; or 5. (ii) a sand dune restoration project; or (iii) the provision and maintenance of public accessways. The clearance of more than 50m2 of contiguous indigenous vegetation within an outstanding natural landscape within the Coastal Area. 6. The establishment of new forestry within an outstanding natural landscape within the Coastal Area. 10 22 March 2016 LAN.2.6 Assessment Criteria 1. Relevant criteria set out in LAN.6 Assessment Criteria shall apply to the consideration of all resource consent applications for land use and development activities within outstanding natural landscapes. LAN.3 Outstanding Natural Landscape Subdivision LAN.3.1 Eligibility Rule 1. The rules below apply in addition to the rules of the underlying Environment. Where the standards are different between the underlying Environment and the ONL area, the most restrictive rule shall apply. LAN.3.2 Notification Rules 1. Subdivision proposals that are non-complying activities must be publicly notified. 2. All other subdivision proposals requiring consent shall be subject to the notification tests of the RMA. LAN.3.3 Discretionary Activities 1. Subdivision within an outstanding natural landscape outside of the Coastal Area is a discretionary activity. LAN.3.4 Non-complying Activities 1. Subdivision within an outstanding natural landscape within the Coastal Area is a noncomplying activity. LAN.3.5 Assessment Criteria 1. Relevant criteria set out in LAN.6 Assessment Criteria shall apply to the consideration of all resource consent applications for subdivision activity within outstanding natural landscapes. LAN.4 Outstanding Natural Features – Landuse LAN.4.1 Eligibility Rules 1. The rules below apply in addition to the rules of the underlying Environment. Where the standards are different between the underlying Environment and the ONF, the most restrictive rule shall apply. 11 22 March 2016 LAN.4.2 Notification Rules 1. Land use proposals that are non-complying activities must be publicly notified. 2. All other land use proposals requiring consent shall be subject to the notification tests of the RMA. LAN.4.3 1. Status of Activities in Outstanding Natural Features The rules applying to activities in outstanding natural features outside the Coastal Area are as specified in Table 1. 2. The rules applying to activities in outstanding natural features within the Coastal Area are as specified in Table 2. 12 22 March 2016 LAN.4 Table 1. Activity Table for Outstanding Natural Features outside the Coastal Area. The following table specifies that activity status of activities in Outstanding Natural Features outside the Coastal Area. Activity Landuse and Development New buildings and structures incl. network utilities Minor upgrading of network utilities Fencing Stock grazing Forestry harvesting and replanting New forestry planting Earthworks General earthworks not expressly either permitted or requiring resource consent in this table. 3 up to 500m 3 greater than 500m Maintenance and repair of roading, tracks, driveways and carparking areas. Land preparation 2 up to 1000m 2 greater than 1000m New farm and forestry roading and tracking Farm and forestry mineral extraction (quarrying) Other mineral extraction Indigenous Vegetation Clearance 2 up to 500m 2 greater than 500m P = permitted D = discretionary Pr = prohibited Large landforms Volcanic cones Smaller, more fragile landforms D Exposures of geological material E Caves B Dynamic landforms and features C A RD D NC NC NC D P P D D D D P P P P P P D D NC D NA NA D NA NA D NA NA P D NC NA NA NA P D P RD D P D NC D NC NC NC NC NC NC NC NC NA P RD P D D D NC NC NC NA NA NC NA NA NC NA NA NA D D NC Pr Pr Pr NC NC Pr Pr Pr Pr P D RD D D NC NC NC NC NA NC NA F RD = restricted discretionary NC = non-complying NA = not applicable 13 22 March 2016 LAN.4 Table 2. Activity Table for Outstanding Natural Features within the Coastal Area. The following table specifies that activity status of activities in Outstanding Natural Features that are within the Coastal Area. Activity Landuse and Development New buildings and structures incl. network utilities Minor upgrading of network utilities Fencing Stock grazing Forestry harvesting and replanting New forestry planting Earthworks General earthworks not expressly either permitted or requiring resource consent in this table. 3 up to 250m 3 greater than 250m Maintenance and repair of roading, tracks, driveways and carparking areas. Land preparation 2 up to 1000m 2 greater than 1000m New farm and forestry roading and tracking Farm and forestry mineral extraction (quarrying) Other mineral extraction Indigenous Vegetation Clearance 2 up to 250m 2 greater than 250m P = permitted NC = non-complying NA = not applicable Large landforms Volcanic cones Smaller, more fragile landforms D Exposures of geological material E Caves B Dynamic landforms and features C A NC NA NC NC NC NC D NA D D D D D D NA NA NA NA D D NC D NA NA D NA NA NA NA NA NA NA NC NA NA NA D NC P NA NA NA NC NC NC NC NC NC NC NC NC NC NC NA NA NA NA NA NA NA NC NC NC NA NA NC NA NA NC NA NA NA NA NA NC Pr Pr Pr Pr NA Pr Pr Pr Pr D NC NA NA NC NC NA NA NA NA NA NA F D = discretionary Pr = prohibited 14 22 March 2016 LAN.4.4 Restricted Discretionary Activities: Matters of Discretion 1. Discretion will be restricted to the matters below for the activities listed as restricted discretionary in Table 1: (a) the nature, form and extent of proposed works. (b) the degree of existing geological modification. (c) the need or purpose of the proposed building or structure. (d) alternative methods and locations for the proposed activity. (e) the potential for erosion or other adverse effect on the outstanding natural feature. LAN.4.5 Assessment Criteria 1. Relevant criteria set out in LAN.6 Assessment Criteria shall apply to the consideration of all resource consent applications for land use and development activities within Outstanding Natural Features. LAN.5 Outstanding Natural Features Subdivision LAN.5.1 Eligibility Rules 1. The rules below apply in addition to the rules of the underlying Environment. Where the standards are different between the underlying Environment and the ONF, the most restrictive rule shall apply. LAN.5.2 Notification Rules 1. Subdivision proposals that are non-complying activities must be publicly notified. 2. All other subdivision proposals requiring consent shall be subject to the notification tests of the RMA. LAN.5.3 Discretionary Activities 1. Subdivision within an outstanding natural feature outside of the Coastal Area is a discretionary activity. LAN.5.4 Non-complying Activities 1. Subdivision within an outstanding natural feature within the Coastal Area is a noncomplying activity. LAN.5.5 Assessment Criteria 1. Relevant criteria set out in LAN.6 Assessment Criteria shall apply to the consideration of all resource consent applications for subdivision activity within outstanding natural features. 15 22 March 2016 LAN.6 Landscape Assessment Criteria 1. 2. The following criteria shall apply to the consideration of all resource consent applications for subdivision, land use, and development activities within identified outstanding natural features or outstanding natural landscapes. (a) Whether the proposal is consistent with and not contrary to the objectives and policies contained in the LAN Landscapes. (b) The extent to which the proposal is consistent with the Council adopted Landscape Guidelines 2009 or any subsequent replacement version. (c) The elements which make up the distinctive character and qualities of the feature or landscape as recorded in Schedule LAN.7 (ONFs) or XXX worksheets (ONLs). (d) The specific characteristics of the application site, including its location, size, shape and topography. (e) The siting of the activity in relation to ridgelines or other important natural landscape elements. (f) The design of any building, structure, utility or any development. (g) The location and design of vehicle access, manoeuvring and parking spaces. (h) The extent of visible change to the ONL which may result from an activity. (i) The potential for more than minor adverse effects on the ONL. (j) The extent to which adverse visual effects may be mitigated through locally appropriate vegetative screening or other means. (k) The extent to which an application proposes revegetation and/or enhancement of the outstanding natural landscape, and the measures to secure the long term sustainability of the revegetation and/or enhancement. (l) Provisions for the permanent legal protection of the feature or landscape. (m) The environmental effect of the increase in residential intensity and/or the extra lots in relation to the benefits of achieving permanent legal protection of a feature or landscape. Where excavation and / or filling is proposed within an ONF or ONL, the following specific criteria will also be considered: (a) The location, scale and alignment of excavation and/or filling in relation to any existing indigenous vegetation, site features, and underlying landform including ridgelines; and (b) The nature of any avoidance, remediation or mitigation measures proposed, including consideration of alternatives, the profile of cut and fill batters, the likely long term stability of the works proposed, and provisions for revegetation. 16 22 March 2016 LAN.7 SCHEDULE: OUTSTANDING NATURAL FEATURES LAN.7.1 Information Source The source of information for identifying and mapping outstanding natural features within the Whangarei District is the “Inventory (and maps) of Important Geological Sites and Landforms in the Northland Region”, Geological Society of New Zealand unpublished report 95/2, edited by J Kenny and B Hayward (1995). This inventory identifies the best examples of Northland’s unique geology and landforms compiled using the combined knowledge and advice of a large sector of the specialist geological, geomorphological, speleological and soil science communities of New Zealand. LAN.7.2 Significance and Vulnerability The inventory provides a ranking of significance and vulnerability for each identified site. The significance ranking provides three levels: A International B National C Regional A vulnerability classification (1 - 4) is also assigned to each feature, depending on its perceived susceptibility to human activities: 1 highly vulnerable to complete destruction or major modification by humans; 2 moderately vulnerable to modification by humans; 3 unlikely to be damaged by humans; and 4 could be improved by human activity. The intent is to manage outstanding natural features on the basis of their significance and values and the risk of those values being compromised. In order to assist management and decision-making, outstanding natural features have also been categorised by type to provide an indication of the values that make them significant and potential risks to these values. The categories are described below. LAN.7.3 Categories of ONF A. Large landforms These are landforms that are large and robust. The values of such features typically relate to the underlying geology which tells of the history of their formation and the resulting outstanding large-scale landforms, rather than or in addition to their visual amenity or landscape type factors. They can typically withstand moderate scale earthworks or constructions without significant impact. However, major multi-story developments, intense urban and industrial subdivisions or large scale earthworks can significantly detract from the integrity of these landforms and their geological features. 17 22 March 2016 B. Volcanic cones These features derive their values from their distinctive conical form and prominence in the wider landscape setting. These scoria cones and tuff cones are sufficiently robust to withstand small-scale, localised earthworks or constructions without significant impact. However structures in prominent positions, significant permanent earthworks such as farm roads across steep slopes, and rectangular exotic forest plantings can detract from or compromise these natural features, particularly where they protrude significantly into the skyline, alter the cone form or disguise the underlying landform. C. Dynamic landforms and features The values of these landforms or features relate to the ongoing natural physical processes that have constructed them and in many instances are necessary to maintain the landforms. Because of this, these dynamic landforms or features are not only susceptible to direct damage, but to more distant actions that may impact the continuation of the natural processes (e.g. sand supply; dune stabilisation; groundwater levels; soil erosion in cave catchments). Permanent earthworks, building construction, vegetation plantings, extraction of nearby groundwater or other actions could adversely affect the functioning and appearance of these features. D. Smaller more fragile landforms The values of these often spectacular, localised landforms relate to their visual and aesthetic appeal and/or scientific interest. These are small landforms or other features that could be damaged or destroyed by relatively small scale earthworks or construction. Most earthworks, buildings, constructions or plantings would adversely impact on the visual and aesthetic appeal or scientific value of these fragile features. E. Exposures of geological material These natural exposures of rock have values that relate to the geological features that can be seen within the rocks and the information they contain about the history of their formation, the geological origins of the region in general or the fossil history of the biota of New Zealand. Most of these exposures are sufficiently large and robust that small extents of earthworks or rock sampling will have no significant impact. Large-scale earthworks, construction of buildings, vegetation plantings or constructions of walls or erosion barriers could adversely impact the visual, educational or scientific values of these exposures. F. Caves Caves, such as lava and sea caves and their entrances, may, depending upon their depth underground, be susceptible to damage from significant earthworks constructions above them, or from changes in their catchments that may fill them with eroded soil. 18 22 March 2016 LAN.7.4 Identified ONFs by Category A Best exposed section through the cone facies and underlying subvolcanic intrusions in the Taurikura volcanic centre around Whangarei Heads. Includes the rocky pinnacles of Bream Head ridge. Virtually continuous exposure. Cone facies rubbly breccia and andesite flows in the east and subvolcanic andesite, dacite and rhyolite intrusions into the underlying Northland Allochthon in the west, just beneath the volcanic outcrop which forms the rocky peaks of Bream Head. Coastal section and foreshore rocks, 5 km length of coastline from Busby Point east to Bream Head and also the slopes up to the Bream Head ridge and rocky pinnacles. C 3 Whatitiri shield volcano A Only example of a large (4.4 cubic km), almost concentric shield volcano with gentle slopes in Northland. Best example in New Zealand of a small shield volcano. A large concentric shield volcano with very gentle slopes and a diameter of 5-6 km; not breached. Reaches a maximum height of 351 m (ASL) and stands 154 m above the surrounding landscape. Completely covered by farming and forested areas. Several houses and farm roads, but no quarries. The Titoki lava flows originate from this centre. They follow a valley to the N and then to the SW. 3.5 km WNW of Maungatapere Mountain, approximately 5 km WSW of Maungatapere township. B 2 Significance Brief description Location 19 22 March 2016 Map No. Bream Head eroded stratovolcano Feature name Category Vulnerability Large Landforms Importance A Location B A well preserved young volcanic centre with two scoria cones. There are two cones approximately 650 m apart. The older farm covered cone lies to the W, Q06/319143, of the main cone Maruata, Q06/327147. Maruata shows two eruption points with the youngest, largest crater being breached to the S. The centre is approximately 2-3 km in diameter and its height is 200 m ASL, rising 80 m above the surrounding area. Maruata cone has a distinct volcanic form and is bush covered. On the north side a small forestry settlement has been established. This centre lies between Maruata Road and Puketotara Road, approximately 5 km NE of Kamo. C 2 Hikurangi dacite dome B Large, prominent volcanic dome that dominates the landscape adjacent to highway 1 north of Whangarei. 200 m high, slightly eroded volcanic dacite dome, recently dated as < 2 million years old. 1.5 km west of Hikurangi township. C 2 Hurupaki scoria cone B One of three scientifically interesting scoria cones. A quarry exposes an eruption sequence showing that magma variation occurred during eruption. The best such exposure in a young Whangarei centre. A steep sided, partly bush covered cone, 1-2 km in diameter, breached to the SE, that stands 350 m ASL and is extensively quarried on the W side. This is the E most cone of a group of three centres: (E to W) Hurupaki, Rawhitiroa and Ngararatunua. This centre lies between Three Mile Bush Road and Dip Road, approximately 1.5 km W of Kamo township. C 1 Maungakaram ea scoria cone B A well preserved scoria cone with a distinct from that has not been quarried. The southernmost Quaternary Volcanic centre in Northland. A steep sided, forested scoria cone standing approximately 150 m above the surrounding plateau. Mostly covered with native bush, however some pines have been planted. A large flow to the SE (4-5 km) ends in an 8 m rock face, approximately 200m before Omana Road. A disused quarry site in the flow is now used as a rubbish tip. There is a small flow to NW of cone. Lies between O'Carrol Road and Crawford Road, approximately 1 km W of Maungakaramea township. C 1 Glenbervie (Maruata) volcanic cones 20 22 March 2016 Map No. Brief description Feature name Category Significance Vulnerability Volcanic Cones Importance B Location Importance Vulnerability B An almost perfect, steep sided volcanic cone, not farmed or quarried. Largest and best preserved in Whangarei field. A steep sided cone, approximately 1-1.5 km diameter, with scrub and native bush cover and a farm on the flank. Small crater on top. Around 3.5 km ESE of the Whatitiri centre, the peak is 359 m (ASL) but the cone stands 185 m above the surrounding plateau. E of the intersection of Snooks Road and State Highway 14, approximately 3 km SSW of Maungatapere township. B 2 Maunu volcanic cone B A relatively well preserved cone near Whangarei, which has been modified a little by farming, minor quarrying and roading. A 1-2 km diameter cone, which stands 395 m ASL and is breached to the West. The cone is very steep sided, particularly in the S. A TVNZ relay is located on the summit. Access to the summit is via Millington Road. There is a small quarry on the toe of the breached material which has been worked for private and for farm use. The W side is farmed but E and S slopes are covered with bush and pines. The cone rises 150 m above the surrounding plateau, while flows extend approximately 6 km E from the centre, almost to Whangarei City. Just SW of Pukenui State Forest and NE of the intersection of Kara Road and State Highway 14, approximately 2.5 km NE of Maungatapere township. C 1 Ngararatunua volcanic cone B Distinct scoria cone breached to south. The centre is a horseshoeshaped scoria cone, breached to the S with small flows to the S and NE. It is a composite cone; an early cone to the N and a second higher cone to the S, which buried most of the first one before being reached. It is farmed on the W side and the E side is bush covered. The height of the cone is 325 m ASL and it rises 125 m above the lava field. The composite cone is approximately 1.2km in diameter. It is the western most cone of a group of three centres: (E to W) Hurupaki, Rawhitiroa and Ngararatunua. This centre lies between Three Mile Bush Road, Church Road and Rotomate Road, approximately 3.5 km W of Kamo. C 1 Maungatapere volcanic cone 21 22 March 2016 Map No. Brief description Category Significance Feature name Vulnerability Visually prominent, bushclad peak of scoria cone is valuable part of Kamo's landscape and one of the volcanoes of the Whangarei basalt field. Overgrown remains of railway ballast quarry and its associated earthworks is best example of this kind of industrial site in a scoria cone in New Zealand. 200 m high peak of remaining scoria cone rises 80 m above Kamo. Disused quarry had access from railway line in northeast and is overgrown with scrub and forest. Remains of a steam boiler still within the workings. 1 km west of Kamo centre with access into the reserve off Dip Rd. C 2 Parahaki dacite dome, Whangarei B High eroded dome which dominates the eastern side of Whangarei city. Early Miocene intrusive dome of dacite that has had the softer surrounding rocks eroded away leaving it’s as a high and prominent domeshaped hill above the east side of Whangarei City. East side of Whangarei city. C 3 Parakiore rhyolite dome, Whangarei B Prominent volcanic landform, one of two young volcanic domes in Whangarei area. 200 m high, slightly eroded dacite dome with two peaks, recently dated as less than 2 million years old. 1 km W of SH1, 4 km NW of Kamo. C 3 Pukepoto basalt cone B A young centre with a breached multi-vented cone, which shows good volcanic landform. A steep sided bush and farm covered cone. Remnants of the first eruption form a boulder covered hill on the W flank of the younger Pukepoto cone. Pukepoto cone, covers the vent of the original hill, is steep sided and breached by rafting of lava to the S. The Waitangi stream flanking the lava field to the S has exposed basalt at locality QO6/368145. The cone stands 60m above the surrounding lava field Two periods of cone building resulted in three separate flows. Adjacent to and N of Ngunguru road, 7.5 km ENE of Kamo township. C 1 Significance Brief description Location 22 22 March 2016 Map No. Importance B Category Onoke scoria cone, Kamo Feature name Location Vulnerability One of three scientifically interesting scoria cones. A low multi-vented cone with crater lake forms a small grass-covered knoll less than 150 m high, on which a few houses stand, approximately 400 m E of Hurupaki scoria cone. This centre lies between Three Mile Bush Road, Dip Road and Rotomate Road, approximately 3 km W of Kamo township. C 1 An excellent example of an unmodified sand barrier beach and dune field developed between a tidal estuary and a broad open bay. Significant example of a rapidly disappearing coastal feature. Partially vegetated undeveloped barrier spit approximately 2.5km long and 300-600m wide. Dunes and spit relatively undisturbed. Ngunguru sand spit, Ngunguru, 28km North east of Whangarei. , C 2 Mokau Stream soda spring and travertine, Helena Bay C One of the two best examples of travertine deposits from active soda springs in northern New Zealand. Eastern spring has built up a 10 m wide and 2 m high travertine apron flowing down into raupo swamp (photo p. 8 in ref). 4.2 km SSW of Oakura beside forestry road at end of Pukapuka Rd. Springs just above raupo swamp, 30 m east of Orchard Rd. C 1 Te Wairoa soda spring and travertine, Matapouri Bay C One of the two best examples of travertine deposited by an active soda spring in northern New Zealand. 6 m diameter, 4 m high travertine deposit extends from small spring down towards swamp. Mound is hard as concrete and orange stained on top. 3 km SW of junction of Matapouri and Clements Rd. 600 m up a true left tributary of Te Wairoa Stream from end of road where it crosses main stream. On true left bank of tributary adjacent to small area of toitoi swamp. C 1 Significance Brief description Location 23 22 March 2016 Map No. C Category Vulnerability Dynamic Landforms and Features Ngunguru Sandspit Feature name Map No. Brief description Importance C B Significance Importance Rawhitiroa scoria cone Category Feature name D & F One of the best preserved and most easily accessible areas of karst landforms and small caves in Northland. About 4 hectares of vegetated karst with entrances to several caves on one partly underground stream, containing speleothems. Hundreds of limestone boulders with fluting and some castellated. Several 5 m limestone pinnacles in middle of bushed reserve. Several sink holes. 300 m east of Abbey Caves Road, half way between Whareora Road and Old Parua Bay Road; 2 km east of Parahaki and 3 km east of Whangarei. C 2 Hen Island pinnacles D Spectacular rock pinnacles on the main ridge of Hen Island seen for many km in all directions. Pinnacles of volcanic breccia eroded from a 20 million year old stratovolcano. Includes one large rock balancing on a narrow pedestal. West end of crest of Hen Island, including Balancing Rock. C 3 *Hewlett Point karst, Whangarei Harbour D Small area of well-exposed coastal karst developed in autochthonous Whangarei limestone. c. 100 x 50 m block of Whangarei Limestone with fluting, flagginess and small solution cracks. Northwest tip of Hewlett Point. C 2 Houto spilite and conical hill D & E Oldest known occurrence of allochthonous ophiolites (Tangihuas) in Northland. Forms iconic eroded conical hill. Spilitic lava and pillows with intercalated red-brown marble and mudstone with earliest Cretaceous fossils (in road cut). Forming Houto Hill and surrounding area, rock exposures are in road cuttings. C 2 *Kaiikanui basalt protokarst, Helena Bay D One of the two best and most easily seen examples in the Helena Bay area of fluted surfaces (protokarst) formed on basalt. Cap of Horeke Basalt on greywacke. Numerous large scattered basalt boulders, some developing internationally-rare solutionweathered surfaces. Tops of hills, both sides of Kaiikanui Road, southern road to Helena Bay. B 2 Significance Brief description Location 24 22 March 2016 Map No. Abbey Caves and karst, Whangarei Feature name Category Vulnerability Smaller More Fragile Landforms Importance D *Kamo limestone pinnacles D Most spectacular and best preserved limestone karst pinnacles in Northland. Some of deepest and sharpest fluting on a limestone in NZ. Three or four vertical sided, 10 m high, 3-5 m across pinnacles of Whangarei Limestone, on small low knoll in bush. Several fallen over. Many surrounding smaller limestone blocks - many with well-developed fluting, often deep and sharp. Several fallen over. Many surrounding smaller limestone blocks - many with well-developed fluting, often deep and sharp. The top of one fallen pinnacle is the best fluting in Northland, if not the country. Approx. 1 km east of SH 1 on Kamo Springs flat, Whangarei. 100 m southeast of old house, now bed and breakfast called The Rocks. In small area close to Whangarei city, protected in private reserve with bush remnants and QE2 covenant. B 1 Manaia stratovolcano breccia pinnacles D Most prominent exposures of Miocene volcanic breccia and the better of two areas of ridge top tors in the Whangarei Heads area. Weakly stratified andesite breccia forming bluffs and spectacular pinnacles along Manaia ridge - remnants of cone facies of a stratovolcano. Forming Mt Manaia and ridge to north, Whangarei Heads. B 3 Matarau Rd basalt protokarst, Kamo D One of most easily seen examples of basalt protokarst near Whangarei. Large fluted boulders near road with solution basins on top. Boulders of basalt (derived from Whangarei Volcanic Field) with solution fluting and basins on their surface. Hillside covered with basalt boulders some fluted. Best boulders within 10 m of road. On east side of Matarau Rd, 0.6-0.8 km south of junction with Rushbrook Rd, 8 km NW of Kamo. C 1 Ngahere Drive karst, Whangarei D Small but spectacular, easily accessible outcrops of lapiez-weathered limestone close to Whangarei. Fluted and castellated crystalline Whangarei Limestone outcrops in two small reserves and in steep bushed reserve along and on south side of Ngahere Drive and end of Hospital Road. High bluffs in southern reserve and Top Rocks are used for rock climbing. Half way along Ngahere Drive where the road splits to go either side of it. Also 200 m further east, on northern side of road, is a rock climbing reserve (Top Rocks and Main Crag). Steep hillside reserve with limestone bluffs on Sth side of ends of Ngahere Drive and Hospital Rd. C 1 Old Woman Rock, Hen Island D Unusual intertidal rock stack eroded into shape of woman, name-bearer for adjacent Wahine Bay. Rock stack sits on intertidal platform and is eroded out of volcanic breccia. Western entrance of Wahine Bay, Hen Island. C 2 25 22 March 2016 *Otaika Valley basalt protokarst, Whangarei D Best example of fluted basalt proto-karst developed on relatively young volcanic rocks. Fluted basalt boulders developed beneath native forest remnant on the edge of a lava flow from Maungatapere. Most karstic basalt in New Zealand has developed on Pliocene plateau-forming lava flows, but here is an example on the front of a young Pleistocene lava flow from Maungatapere. On edge of native bush and in garden on southern side of Otaika Valley Road, c. 2.5 km east of SH 14. B 2 Paradise Quarry karst, Portland, Whangarei D A small area of limestone (Paradise Stone) karst in its naturally exposed and weathered form, protected by a QE2 covenant. Adjacent to a small building stone quarry which produces “Paradise Stone” - a popular limestone, used for decorative flagstones. An unusual rock type in Northland and source of a fossil lanternfish. Paradise Quarry, Old Stone Road, near Portland. C 2 Paranui Falls, Whangarei D One of the five most scenic waterfalls over basalt lava flows in Northland. Paranui Stream flows over edge of eroding basalt lava flow with a vertical drop an incised gorge-like basin. On Paranui Stream, adjacent to Whareora Rd beside junction with Clapham Rd, 4 km north of centre of Whangarei. C 3 Titoki Natural Bridge D Best natural bridge formed in lava in New Zealand. Stream flows through tunnel in basalt lava flow with natural bridge above. Tunnel is about 15m wide, 30m long and 10m high. Valley in regenerating bush On Waitomotomo Stream, 500m west of Pipiwai - Titoki Road / McCardle Road, 2km North of Titoki. B 2 Urquharts Bay concretions, Whangarei Heads D Most easily accessible large spherical concretions in the Whangarei area, Northland. A number of spherical concretions up to 1.5 m diameter on the beach and eroding out of the Cretaceous parent rocks at the south end of Urquharts Bay. On beach and in low eroding banks at south west end of Urquharts Bay, Whangarei Heads. 2C *Waipu Caves and karst D & F Best and largest area of limestone karst geomorphology in Northland, south of Whangarei. Includes largest cave passage in Northland. Fossil bone deposits in Paryphanta Passage. Fluted boulders and sinkholes in Oligocene limestone at Waipu Caves reserve, Waipu Caves Walkway and along roadside. Best examples are north of Waipu Caves Road. About 3 km horizontal stream cave. Includes both Waipu Cave and Elver Canyon Cave. North of Waipu Caves Road, Waipu. C 2 26 22 March 2016 Waipu Cove OligoceneMiocene sequence and coastal karst D & F Only significant coastal karst and karstic sea cave in Northland. Exposes clear stratigraphic sedimentary relationship between Waitemata flysch, Te Kuiti Group limestone and basement. Oligocene shallow water, flaggy, bioclastic, sandy limestone unconformably sits on Waipapa greywacke and passes abruptly and conformably up into deep water early Miocene Waitemata flysch. Outcrops and large fallen boulders developing solution runnels. One solution cave with speleothems around point from western end of Langs Beach (Q08 / 484 723). Coastal section from 500 m SE of Waipu Cove to point at western end of Langs Beach. C 2 Wairua Falls D One of the five largest waterfalls over basalt lava flows in Northland. River falls over the edge of a lava flow from Whatatiri shield volcano and erodes into softer country rock alongside. A dam upstream diverts some of the water for hydro purposes. At end of Wairua Falls Road, 2 km from turnoff from HWY 14. C 2 Waro karst, Hikurangi D Excellent example of karst pinnacles close to highway. In Oligocene limestone. North side of Hikurangi. C 2 Whangarei Falls D One of the five best examples of a waterfall cascading over the edge of an eroding basalt lava flow in northern New Zealand. A scenic 26 m high waterfall where the Hatea River plunges over the eroding edge of a columnar-jointed basalt flow originating from Vinegar Hill. 30 m total thickness, with the base of the basalt corresponding with the base of the falls. Shows change from platy jointing near top of flow to columnar jointing near base. 50 m downstream from Tutukaka Road bridge over the Hatea River, approximately 1 km E of Tikipunga, within the outer suburbs of Whangarei city. C 3 E Location Good example of a porphyry copper deposit. Pyrrhotite-chalcopyrite hydrothermal mineralisation in pyroxene diorite and dacite breccia. West end of Coppermine Island, Chickens Group. B 2 27 22 March 2016 Map No. Brief description Vulnerability Coppermine Island copper mineralisation Significance Importance Feature name Exposures of geological material Category E Vulnerability Only diorite plutons in Whangarei Heads region. A dark coloured, coarse grained, pyroxene diorite, roughly elliptical in shape, with weak foliations parallel to the margins. Coastal cliffs on the western end of Coppermine Island. C 2 Kamo Brickworks Eocene coal measures E Best remaining permanent exposure of Kamo Coal Measures. Easily viewed. Jarositic carbonaceous mudstone, sandstone, conglomerate and coal sequence typical of the lithologies of the late Eocene Kamo Coal Measures. In cutting alongside former Kamo Brickworks building, now a garden centre. On south side of main railway line just east of where it ran underneath the old North Rd. C 1 Kauri Mountain hornfels and metallic mineralisation E Well-exposed example of hornfels (rocks metamorphosed by heat of intruding magma). Best example in Northland of veins of metallic mineralisation including galena, sphalerite and pyrite. Hornfels up to 2 m wide at contact with quartz-diorite are exposed in cliffs and shore platform. In coastal cliff and foreshore at Flax Bay, east coast of Kauri Mt. B 3 Mangawhati Point limestone karst and greensand, Whangarei Harbour E Well exposed autochthonous middle Tertiary sequence beneath Northland Allochthon. Includes excellent example of coastal karst, intensively burrowed (Scolicia) calcareous greensand, the best crab fossil locality in Northland. Conglomerate, glauconitic calcareous sandstone and bioclastic limestone overlain by basal allochthon. Includes Eocene sandstone beds with moderately rich fossil bivalves and crabs. Coastal karst extends around Mangawhati Pt. Allochthon lithologies include rare black chert. Around Mangawhati Point extending 500 m south on the east side along the foreshore. C 2 McLeod Bay Miocene unconformity, Whangarei Heads E Easily accessible and excellent exposure of deep water early Miocene thinbedded sandstone and siltstone unconformably overlying Oligocene limestone and itself overlain by Northland Allochthon. Sequence is near vertical and may be a block within Northland Allochthon. Provides a window into the history of the rocks deposited in this region prior to the incoming of the Northland Allochthon about 23 million years ago. In foreshore 100-200 m northeast of wharf at west end of McLeod Bay. C 2 Ngunguru River mouth pillow basalt and peperite E The most accessible example of pillow basalt and peperite within basement greywacke (Waipapa Group) in Coastal outcrops of PermianTriassic Waipapa terrane pillow basalt with interbedded peperites (lava that has been brecciated by Western end of Whangaumu (Wellingtons) Bay, 7 km by road east of Ngunguru township, C 3 Significance Brief description Location 28 22 March 2016 Map No. Importance E Category Coppermine Island diorite intrusion Feature name Vulnerability One of very few exposures where the basal contact of Northland Allochthon can be seen and provides clues into how and when it was emplaced. Waipapa greywacke unconformably overlain by Waitemata Group sandstone and pebble breccia, in turn overlain by Northland Allochthon melange. In intertidal rocks and low cliffs at the north end of Ocean Beach, at end of Kauri Mt Rd. C 2 One Tree Point interglacial beach and dune deposits E Well exposed Late Pleistocene regressive coastal sand sequence. Only remaining exposures in the area that are not obscured by coastal foreshore protection works, and should be left in their unmodified state. Coastal cliff and foreshore exposures show a shallowing upwards regressive sequence from shallow marine sand through beach sand to coastal foredune, with overlying swamp deposits in interdune hollows. Southern shore of Whangarei Harbour west of Marsden Point, from One Tree Point southwestwards for 1 km. B 1 Onemama Point allochthonous sediments, Whangarei Harbour E Excellent exposures documenting earliest allochthon emplacement in this region. Allochthonous olistostromes within Waitakian shallow water bioclastic sandstone facies. From tip of Onemama Point to 1.5 km to NW. B 3 Parua Bay basal allochthon mélange E One of the classic localities in Northland showing the base of the allochthon sitting on early Miocene rocks and greywacke Mélange overlying decollement cut into c.5m of Miocene Waitemata Group bioclastic limestone and flysch, upon greywacke basement. At eastern end of Parua Bay extending along foreshore North of Nook Road B 3 Parua Bay red chert, Whangarei Harbour E Excellent and most easily accessible exposure of red chert within greywacke basement sequence in Northland. Intertidal outcrop over 80 x 50 m of foreshore adjacent to road. Between Parua Bay boat ramp carpark and hotel. C 2 Reserve Point nephelinite flows and garnet andesite E Only known nephelinite flow in northern New Zealand, adjacent to garnet andesite intrusion rich in mantle xenoliths. Up to 4m thick columnar jointed nephelinite flow lens with Runangan shallow water sediment sequence sitting uncomformably on greywacke. This sequence is intruded by garnet hornblende andesite rich in unusual mantle xenoliths. Whangarei Harbour, coastal rocks and low cliffs on South side of Reserve Point, 1 Km east of tip B 2 Significance Brief description Location northern New Zealand. eruption into cold sea water). 30 km NE of Whangarei. 29 22 March 2016 Map No. Importance E Category Ocean Beach autochthonallochthon contact, Whangarei Heads Feature name Vulnerability E One of the best examples of algal (rhodolith) limestones in New Zealand. Smallest of two known exposures in the vicinity. Probably in-situ blocks of c. 5 m thick late Eocene algal limestone. Concentrically banded algal rhodolith spheres 1-6 cm diameter throughout, within distinctively bedded unit. Several blocks have been split open along bedding planes to expose plan views Blocks cover area of c. 30 x 20 m, beside farm track near junction of three forks of a small stream, c. 200 m up flat section of valley from the coast. Stream valley mouth is largest and about midway between Mangawhati Pt and where Takahiwai Rd leaves coast. B 1 Taurikura Bay natural jetty E Best natural jetty formed by a dike in New Zealand. Two metre wide andesite dike intruding Northland Allochthon and forming a 50m long jetty into bay. Fifty cm wide zone of baked muddy limestone on either side. Foreshore of Taurikura Bay, adjacent to Ody Road junction. B 1 Te Ruatahi dune sequence, Mimiwhangata E Occurrence of rich Holocene terrestrial fossil faunas in eroding dune sand. Dune field containing late Holocene fossil land snail assemblages South end of Te Ruatahi Beach, Mimiwhangata. C 1 Significance Brief description Location Importance Vulnerability One of the best preserved and most easily accessible areas of karst landforms and small caves in Northland. About 4 hectares of vegetated karst with entrances to several caves on one partly underground stream, containing speleothems. Hundreds of limestone boulders with fluting and some castellated. Several 5 m limestone pinnacles in middle of bushed reserve. Several sink holes. 300 m east of Abbey Caves Road, half way between Whareora Road and Old Parua Bay Road; 2 km east of Parahaki and 3 km east of Whangarei. C 2 Abbey Caves and karst, Whangarei Category Location D & F 30 22 March 2016 Map No. Feature name Brief description Caves Category F Significance Map No. Importance Takahiwai algal limestone, Whangarei Harbour Feature name Vulnerability Best developed sea arches, tunnels and caves in New Zealand. Includes completely submerged tunnels, air bubble caves many of which have been named. Numerous arches, tunnels and caves ranging up to 200m long and 50 m wide, eroded by the sea along joints in silicified rhyolite breccia. Located at present sea level, depths up to 30-40 m below present and uplifted to heights up to 80 m above present. On and through Tawhiti Rahi, Aorangi, Aorangaia and Archway islands. Tawhiti Rahi itself contains uplifted sea cave c.60 m asl (dimensions 12 m deep, 8 m wide, 5 m high). Around the coast of the Poor Knights Islands e.g. Rikoriko Cave; Maomao Arch; Cathedral Arch. B 3 *Two Tone Cave, Waipu F One of the longest caves in Northland with numerous branches. Horizontal stream cave about 3 km long. In places the cave floor is on greywacke Caves Road, Waipu. C 3 *Waipu Caves and karst D & F Best and largest area of limestone karst geomorphology in Northland, south of Whangarei. Includes largest cave passage in Northland. Fossil bone deposits in Paryphanta Passage. Fluted boulders and sinkholes in Oligocene limestone at Waipu Caves reserve, Waipu Caves Walkway and along roadside. Best examples are north of Waipu Caves Road. About 3 km horizontal stream cave. Includes both Waipu Cave and Elver Canyon Cave. North of Waipu Caves Road, Waipu. C 2 Waipu Cove OligoceneMiocene sequence and coastal karst D & F Only significant coastal karst and karstic sea cave in Northland. Exposes clear stratigraphic sedimentary relationship between Waitemata flysch, Te Kuiti Group limestone and basement. Oligocene shallow water, flaggy, bioclastic, sandy limestone unconformably sits on Waipapa greywacke and passes abruptly and conformably up into deep water early Miocene Waitemata flysch. Outcrops and large fallen boulders developing solution runnels. One solution cave with speleothems around point from western end of Langs Beach (Q08 / 484 723). Coastal section from 500 m SE of Waipu Cove to point at western end of Langs Beach. C 2 Significance Brief description Location *Note: Abbey Caves, Waipu Cave and Waipu Cove cave records are duplicated under Category F for ease of reference. 31 22 March 2016 Map No. Importance F Category Poor Knights sea arches and caves Feature name
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